bottlefedbuell
Well-known member
My Basketcase Bolt with 10K miles has recently developed a Real Bad Backfire/Surge at about 4500RPM.
Cruising at 4500 or so, it will suddenly and violently do a quick engine brake and the tach will jump up about 800rpm or so give a quick backfire and resume like normal. The first couple times i almost went over the handlebars.
Thought maybe the clutch was slipping, so i adjusted it multiple times trying to see if that was the case.
At lunch, i went out in the lot w/o my helmet and tried to see if it was better.
My pump has become real loud, to almost a squelling noise.
If the pump is having problems keeping up, will it lean out and cause the RPMs to surge ?
Its really hard to tell where the problem lies.
Newer battery, all grounds are good, and no codes.
Have not had a chance to data log it yet, afraid it will leave me stranded again.
Anyone ever have this happen?
Searched through the forums and found some cross referance to Walbro pump for Mustang V6, but others say it is not compatible.
Thanks for the help
Cruising at 4500 or so, it will suddenly and violently do a quick engine brake and the tach will jump up about 800rpm or so give a quick backfire and resume like normal. The first couple times i almost went over the handlebars.
Thought maybe the clutch was slipping, so i adjusted it multiple times trying to see if that was the case.
At lunch, i went out in the lot w/o my helmet and tried to see if it was better.
My pump has become real loud, to almost a squelling noise.
If the pump is having problems keeping up, will it lean out and cause the RPMs to surge ?
Its really hard to tell where the problem lies.
Newer battery, all grounds are good, and no codes.
Have not had a chance to data log it yet, afraid it will leave me stranded again.
Anyone ever have this happen?
Searched through the forums and found some cross referance to Walbro pump for Mustang V6, but others say it is not compatible.
Thanks for the help